ABB Italy S.p.A.
Power Range: 3.3~5 kW
Region: Italy Italy
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1. WLAN communication with integrated web server
2. Zero commissioning capability
3. Future-proof with embedded connectivity for Smart building and Smart grid integration
4. Dynamic feed-in control (zero injection)
5. Remote Over The Air (OTA) firmware upgrade for inverter and components
6. Native Modbus SunSpec protocol (TCP/RTU)
7. Improved user experience though the embedded UI
8. Dual input section with independent MPPT
9. Integrated rapid shutdown power

Product Characteristics

Model No.
Input Data(DC)  
Max. DC Power
3.5 kW 4.25 kW 4.75 kW 5.15 kW
Max. DC Voltage
600 V 600 V 600 V 600 V
Rated DC Voltage
360 V 360 V 360 V 360 V
Min. DC Voltage to Start Feed In
200 V 200 V 200 V 200 V
Max. DC Current
20 A 32 A 32 A 38 A
MPP(T) Voltage Range
160~530 V 120~530 V 140~530 V 145~530 V
No of MPP Trackers
2 2 2 2
DC Inputs
1 1 1 1
Output Data (AC)  
Max. AC Power
3.3 kW 4 kW 4.6 kW 5 kW
Output AC Voltage Range
180~264 V 180~264 V 180~264 V 180~264 V
Rated AC Voltage
230 V 230 V 230 V 230 V
Max. AC Current
14.5 A 17.2 A 20 A 22 A
Frequency Range
47-63 Hz 47-63 Hz 47-63 Hz 47-63 Hz
50, 60 Hz 50, 60 Hz 50, 60 Hz 50, 60 Hz
Power Factor (cosθ)
0.995 0.995 0.995 0.995
Distortion (THD)
< 3.5 % < 3.5 % < 3.5 % < 3.5 %
No of feed-in phases
1 1 1 1
Max. Efficiency
97 % 97 % 97 % 97.4 %
Euro Efficiency
96.5 % 96.5 % 96.5 % 97 %
General Data  
Dimensions (H/W/D) 
553x418x175 mm 553x418x175 mm 553x418x175 mm 553x418x175 mm
15 kg 15 kg 15 kg 15 kg
Power Consumption at Night
< 0.4 W < 0.4 W < 0.4 W < 0.4 W
Noise Level
< 50 dB(A) < 50 dB(A) < 50 dB(A) < 50 dB(A)
Operating Temperature -25 ~ +60 ℃
Transformer Transformerless
Protection Class IP65
Humidity 0-100 %
Cooling Natural
Max. Altitude 2000 m
Interface RS 485, WLAN
Download Manufacturer's PDF

Product Highlights:

The new UNO-DM-PLUS single-phase inverter family, with power ratings from 3.3 to 5.0 kW, is the optimal solution for residential installations.

One size fits all

The new design wraps ABB’s quality and engineering into a lightweight and compact package thanks to technological choices optimized for installations with different orientation.

All power ratings share the same overall volume, allowing higher performance in a minimum space, and have a dual

Maximum Power Point Tracker (2 MPPT)

Easy to install, fast to commission The presence of Plug and Play connectors, both on the DC and AC side, as well as the wireless communication, enable a simple, fast and safe installation without the need of opening the front cover of the inverter.

The featured self-commissioning routine removes the need for a manual configuration process, resulting in lower installation time and costs.

Smart connectivity and integration

Embedded WLAN communication with all service software enclosed within the inverter and wirelessly accessible using any standard device (smartphone, tablet or PC).

The future-proof and flexible design enables integration with current and future devices for smart building automation.

Improved user experience thanks to a build in User Interface (UI), which enables access to advanced features such as advanced inverter configuration settings, dynamic feed-in control and load manager.

SunSpec Compliant

The compliance with SunSpec Protocol (TCP/RTU) ensures an easy and immediate integration with third party devices within Smart buildings and Smart grids.

About ABB

ABB has one of the widest portfolios of solar inverters ranging from small micro-inverters and three-phase string inverters up to megawatt-sized central inverters. This extensive range of solar inverters is suitable for the smallest residential photovoltaic (PV) systems right up to multi-megawatt PV power plants.

The offering is complemented by various monitoring solutions as well as a global service network to maximize the return on your investment.

ABB solar inverters utilize over 40 years of experience and advances made in inverter and power converter technology that have contributed to ABB becoming the world leader in frequency converters, and also one of the largest suppliers of wind turbine converters.

1. Key Features

   a. 1 to 3 MPPTs (dependent on inverter)

   b. Very wide operating voltages allow early startup and extends the time of operations, generating higher yields

   c. Not only high efficiency but flat efficiency curves. This means the product is not only efficient but is consistently efficient throughout the maximum amount of time

   d. DC/AC wiring junction boxes are often integrated options for ABB inverters. This can provide a great amount of cost saving compared to purchasing junction boxes seperately, providing high quality protections to the inverter and the system. 

   e. Rapid shutdown, Arc Fault Circuit Interrupters and many other safety features are available (dependent on market)

   f. Free monitoring for the warranty lifetime of the inverter via a fast and independently secure 3rd party cloud server

   g. Up to IP65 rating

   h. High power density, compact form factor

2. Environments: ABB inverters have been used in virtually all environments. Depending on the inverter, it can operate as low as -20C to +60C. In desert environments, we have turnkey inverter housing solutions that provide air-conditioning coooling and protection from harsh desert winds and sands. In coastal or salt water saline environments, several of our inverters have been certified with salt fog protection to resist salt corrosion. 

3. Solar distributors and system integrators. 

4. Features: ABB solar inverters are premium quality solar inverters built in Europe. They offer the market’s leading engineering to provide the highest energy yields due to high and consistent efficiency and wide operating windows. They are supported by intelligent monitoring services via the Amazon cloud to provide FREE monitoring for the lifetime of the inverter’s warranty. This provides the plant owner and end user actionable data that optimizes the yield and ensures maximum uptime. 

5. With over 2 million inverters sold and a 25GW install base, most major EPCs, system integrator and distributors are regular buyers of ABB products.

6. 5 year warranty extendable to 10 years

7. ABB operates in 100 different countries with local sales and service organizations. Wherever you are, ABB is likely to have a local office that can support you. Local presence and a large global footprint is a major benefit of dealing with ABB. 

8. Upon breakdown, our customer information centre (CIC helpdesk) will attempt to troubleshoot the issue to bring the inverter back online as fast as possible. If diagnosed as necessary, the inverter can be field swapped in a short period, or a service engineer can be dispatched for a field intervention.

9. ABB inverters comply with all major certifications and this can be found in our datasheet. 

10. Payment terms depend on the volume of purchase and are highly favorable to the customer. 

11. Inverters are typically shipped within 4-6 weeks upon order from our European factories to the customer site or warehouse. 

ABB Italy S.p.A.

Via S.Giorgio, 642 - 52028 Terranuova Bracciolini, Arezzo
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The ABB Proposition

ABB provides the most comprehensive portfolio of products, systems and solutions along the solar PV value chain that enable the generation, transmission and distribution of solar power for both on-grid and microgrid applications.

The offering includes one of the widest portfolio of inverters. Big or small, commercial or residential, utility or industry, ABB has the power to support you.

The ABB Advantage

Quality, local presence, and bankability are the hallmarks of ABB products.

European quality engineering and production: With factories in Europe, ABB inverters are made with highest quality of materials and manufactured the highest quality EU standards. This provides a high performing inverter that is built to last.

Global footprint; Local presence: ABB has over 30 GW of solar inverters and presence in over 100 countries, you can count on an ABB office near you to provide strong local support which is critical to long-term smooth operation of your solar installation.

Bankability: Solar installations are meant to operate for 20-25 years at a time, and are a high investment whether you are a homeowner or a solar farm developer. With over 40 years of history as ABB, yearly revenues of $35 billion and 135 thousand employees, ABB is a Fortune 200 publicly listed company that customers can rely on.

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